EXHIBIT A
JOINT FILING AGREEMENT
In accordance with Rule13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of Sunesis Pharmaceuticals, Inc. and further agree that this agreement be included as an exhibit to such filing. Each party to the agreement expressly authorizes each other party to file on its behalf any and all amendments to such statement. Each party to this agreement agrees that this joint filing agreement may be signed in counterparts.
In evidence whereof, the undersigned have caused this Agreement to be executed on their behalf this 4th day of February, 2020.
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| UBS ONCOLOGY IMPACT FUND L.P. | | | | ONCOLOGY IMPACT FUND (CAYMAN) MANAGEMENT L.P. |
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| By: | | Oncology Impact Fund (Cayman) Management L.P, | | | | By: | | MPM Oncology Impact Management LP, |
| | its General Partner | | | | | | its General Partner |
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| By: | | MPM Oncology Impact Management LP, | | | | By: | | MPM Oncology Impact Management GP LLC, |
| | its General Partner | | | | | | its General Partner |
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| By: | | MPM Oncology Impact Management GP LLC, | | | | By: | | /s/ Ansbert Gadicke |
| | its General Partner | | | | | | Name: Ansbert Gadicke |
| | | | | | | | Title: Managing Member |
| By: | | /s/ Ansbert Gadicke | | | | | | |
| | Name: Ansbert Gadicke | | | | | | |
| | Title: Managing Member | | | | | | |
| | |
| MPM ONCOLOGY IMPACT MANAGEMENT LP | | | | MPM ONCOLOGY IMPACT MANAGEMENT GP LLC |
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| By: | | MPM Oncology Impact Management GP LLC, | | | | | | |
| | its General Partner | | | | By: | | /s/ Ansbert Gadicke |
| | | | | | | | Name: Ansbert Gadicke |
| By: | | /s/ Ansbert Gadicke | | | | | | Title: Managing Member |
| | Name: Ansbert Gadicke | | | | | | |
| | Title: Managing Member | | | | | | |
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